Patents Examined by Arthur Koechert
  • Incorporation of desired groups into polymers, the polymers so produced, and compositions containing them
    Patent number: 5364891
    Abstract: Process for making a polymer with desired groups Y comprising reacting a precursor polymer having carbon- or nitrogen-bound --NH.sub.2 and/or --NH-- groups with at least one compound having a single enolic carbonyl group and at least one group Y. Also the polymer itself and a composition containing it.
    Type: Grant
    Filed: February 14, 1991
    Date of Patent: November 15, 1994
    Assignees: Imperial Chemical Industries PLC, ICI Resins BV
    Inventors: David A. Pears, John G. Carey, Paul H. Stenson, Gerardus C. Overbeek